Axle-box lid



(No Model.)

N. H. DAVIS -AXLE BOX LID.

No. 562,589. Patented June 23; 1896.

- 7y- MZQ Witnesses. 74

A Attorney.

ANDREW B GRAHRM,RHOTO-LITMQWASHNGTON QC UNITED STATES PATENT Y OFFICE.

NATHAN H. DAVIS, OF PHILADELPHIA, PENNSYLVANIA.

AXLE-BOX LID.

SPECIFICATION forming part of Letters Patent No. 562,589, dated June 23,1896.

Application filed March 14, 1896.

To all whom it may concern:

Be it known that LNATHAN H. DAVIS, a citizen of the United States,residing in the city and county of Philadelphia, in the State ofPennsylvania, have invented a certain new and useful Improvement inAxle-Box Lids, of which the following is a true and exact description,reference being had to the accompanying drawings, which form a part ofthe specification.

My invention relates to axle-box lids such as are used in connectionwith the axle-boxes of railway-cars, and has for its object to provide alid and lid-spring of simple, efficient, and cheap construction.

. The nature of my improvements will be best understood as described inconnection with the drawings in which they are illustrated, and inwhich- Figure 1 is a side elevation of an axlebox provided with myimproved lid and spring. Fig. 2 is a view of the lid, taken onsectionline 1 1 of Fig. 1; and Fig. 3 is a sectional view taken on theline 2 2 of Fig. 2.

A is the axle-box; A, a flange or extension of the box at one side ofthe opening therein; A aledge at the lower side of the opening againstwhich the lower edge of the lid rests when it is closed.

B is the axle-box lid, which, as shown, and as I prefer to construct it,is made of stamped malleable metal. It is provided with an extension,preferably rounded, as shown at B, and in this extension is formed aperforation with an upwardly-extending flange, as indicated at B Thisflange, for reasons which will be understood in connection with thefurtheridescription, should be of other than circular form, preferablyof elliptic form, as shown in the drawings, the longer axes of theellipse lying in the direction of the length of the lid.

B is an extension from the opposite side of the lid, formed to makea'convenient gripping-place whereby the lid may be engaged and opened.

0 indicates the device by which the lid is V pivotally secured to theaxle-b ox and by which the spring to be hereinafter described is held inproper tension. This device may conveniently be a bolt, as is shown inthe drawings, the threaded end passing through the Serial No. 583,214.(No model.)

flange A of the lid and being secured thereto by a nut C, while the head0 of the bolt rests upon the upper leg or arm of the spring. This springis indicated at D and is made of a U shape, preferably having one legconsiderably longer thanthe other, as indicated at D The spring isprovided with two perforations, one, D of such shape as to fit over andpreferably engage with the flange of the peforation 13 while the otherspring perforation, D, is in the opposite leg of the U and is of suchsize as will permit the bolt 0 to pass through it.

In my preferred construction the perforation D not only rests around theflanged perforation 13 but so engages it as to prevent any rotativemovement of the spring D, which in normal position should liesubstantially in the direction of the longitudinal axis or center lineof the lid with its long arm D extending out and resting upon the faceof the lid. Indeed I prefer so to form the spring D that its greatestpressure will be exerted on the face of the lid through the end of itslong arm D My reason for preferring to make the flan ged perforation Bof elliptic form, as described, and for making the perforation D ofcorresponding form is the very obvious one that by this construction notonly is the spring prevented from turning around the perforation B butthe necessary perforation in the spring-plate is such as to weaken thespring as little as possible.

It is to be noted that while the elongated or elliptical form of theflanged perforation B is such as to permit a certain movement of the lidwith reference to its pivot-bolt 0 yet the engagement of the spring Dwith the flange of the perforation and the comparatively close fit ofthe perforation D upon the bolt 0 is such as to prevent anyobjectionable movement of the lid with reference to its pivot-bolt.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. An axle-box lid having a flanged perforation 13 extending upward fromone end in combination with a U -shaped spring having a perforation as Dadapted to fit over the flange of perforation 13 formed in one arm and acorresponding perforation D in its other arm, and means as bolt 0 forputting spring D under tension and securing the lid to an axle-box.

2. An axle-box lid having a flanged perforation B extending upward fromone end in combination with a U-shaped spring D having one arm D formedlonger than the other and adapted to lie upon the top of the lid andextend toward the center thereof said spring having a perforation as Din its longer arm adapted to fit over the flange of perforation B and acorresponding perforation D formed in its shorter arm and means as bolt0 for putting spring D under tension and securing the lid to anaxle-box.

3. An axle-box lid having a flanged perforation 13 of other thancircular outline exten (1- ing upward from one end in combination with aU shaped spring having a perforation as D and adapted to fit over andengage With the flange of perforation B formed in one arm and acorresponding perforation D in its other arm, and means as bolt 0 forputting spring D under tension and securing the lid to an axlebox.

4. An axle-box lid having a flanged elliptically-shaped perforation Bextending upward from one end With its longer axes lying in thedirection of the length of the lid in combination With a U-shaped springhaving an elliptical perforation as D adapted to fit over the flange ofperforation B formed in one arm and a corresponding perforation D in itsother arm, and means as bolt G for putting spring D under tension andsecurin g the lid to an axle-box.

NATHAN H. DAVIS.

Witnesses:

CHARLES F. ZIEG-LER, D. STEWART.

